audio mode load: gracefully handle mode files of wrong AEC version Unfortunately our change of enabling L1_NEW_AEC (which is necessary in order to bring our Calypso ARM fw into match with the underlying DSP reality) brings along a change in the audio mode file binary format and file size - all those new tunable AEC parameters do need to be stored somewhere, after all. But we already have existing mode files in the old format, and setting AEC config to garbage when loading old audio modes (which is what would happen without the present change) is not an appealing proposition. The solution implemented in the present change is as follows: the audio mode loading code checks the file size, and if it differs from the active version of T_AUDIO_MODE, the T_AUDIO_AEC_CFG structure is cleared - set to the default (disabled AEC) for the compiled type of AEC. We got lucky in that this varying T_AUDIO_AEC_CFG structure sits at the end of T_AUDIO_MODE!

/************* Revision Controle System Header *************
 *                  GSM Layer 1 software 
 * L1GTT_MSGTY.H
 *
 *        Filename l1gtt_msgty.h
 *  Copyright 2003 (C) Texas Instruments  
 *
 ************* Revision Controle System Header *************/

#if (L1_GTT == 1)

typedef struct
{
  UWORD8 loop_type;  // Type of loop to be closed
}
T_TST_CLOSE_GTT_LOOP_REQ;

typedef struct
{
  UWORD8  scen_type;  // 1 = input on CTM Tx, 2 = input on Baudot encoder
                      // SIMULATION ONLY: 3 = input on CTM Rx, 4 = input on Baudot decoder
  UWORD16 rate;       // Number of frames (4.615 ms) between each new character arrival
                      // for scen_type 3 and 4: GTT input file number
}
T_TST_START_GTT_TEST_REQ;

#endif // L1_GTT